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Latest company case about Urban Foundation Solutions with Small Rotary Drilling Rig

Urban Foundation Solutions with Small Rotary Drilling Rig

2026-01-13
Revolutionizing Small-Scale Foundation Projects with Compact Power

In the competitive world of construction machinery, APIE FOUNDATION EQUIPMENT (CHINA) LIMITED presents the small rotary drilling rig – a game-changer for urban infrastructure projects and limited-space construction sites. This versatile small rotary drilling equipment delivers exceptional performance where space constraints and access limitations traditionally challenge larger drilling rigs.

Project Overview: Urban Residential Foundation Project

A construction company in Southeast Asia faced a challenging foundation project for a 6-story residential building in a densely populated urban area. The site featured narrow access roads and overhead power line restrictions, making conventional drilling equipment impractical. The project required drilling 45 foundation piles with diameters ranging from 400mm to 800mm, reaching depths of 8-10 meters through mixed soil conditions.

Why Small Rotary Drilling Rig Was Chosen

The small rotary drilling rig emerged as the optimal solution due to its compact design and impressive specifications:

  • Transportable Dimensions: 4.36m length × 2m width, with transport heights of 2.9m (without Kelly bar) and 3.1m (with Kelly bar)
  • Powerful Drilling Capacity: Maximum drilling depth of 12m, with drilling diameter range of 380-1000mm
  • Versatile Kelly Bar: 325×6×2.4mm configuration suitable for various soil conditions
  • Compact Weight: Operating weight of 9,300kg, ideal for maneuvering in confined spaces
Performance Results

The small rotary drilling equipment exceeded project expectations:

  1. Enhanced Mobility: The APR35’s compact footprint allowed easy navigation through narrow urban streets and tight construction site boundaries
  2. Precision Drilling: With rotary head output torque of 35kNm and rotation speed adjustable between 7-40rpm, the rig delivered precise hole quality
  3. Efficient Operations: Main winch lifting capacity of 45kN with 60m/min lifting speed optimized drilling cycles
  4. Reliable Performance: Isuzu 4JG3 engine (36 kW/2000 rpm/3000 cc) provided consistent power throughout the project
Technical Excellence in Action

The small rotary drilling rig demonstrated superior capabilities through its advanced features:

  • Flexible Mast Configuration: Lateral tilt angle of 15°, forward tilt of 10°, and backward tilt of 15° enabled precise positioning
  • Robust Pressurization System: 1000mm maximum stroke with 40kN pressure force and 50kN lifting capacity
  • Dual Winch System: Main winch (16mm rope diameter) and auxiliary winch (10mm rope diameter) for versatile operations
  • Quality Components: Featuring SANY hydraulic systems, Rexroth cylinder balancing valves, and Bonfiglioli power head reducer
Project Outcome

Completed within 25 working days (5 days ahead of schedule), the project showcased how the small rotary drilling rig could deliver large-rig performance in a compact package. The client reported significant cost savings due to reduced mobilization expenses and minimal site preparation requirements.

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